Start gaia fight with empty boss bar

(fixes #4832)

Author: TheRealWormbo

Xplat/src/main/java/vazkii/botania/common/entity/GaiaGuardianEntity.java

@@ -248,6 +248,7 @@ public static boolean spawn(Player player, ItemStack stack, Level world, BlockPo
 			e.setPos(pos.getX() + 0.5, pos.getY() + 3, pos.getZ() + 0.5);
 			e.setInvulTime(SPAWN_TICKS);
 			e.setHealth(1F);
+			e.bossInfo.setProgress(0.0f);
 			e.source = pos;
 			e.mobSpawnTicks = MOB_SPAWN_TICKS;
 			e.hardMode = hard;

web/changelog.md

@@ -21,6 +21,7 @@ We cannot provide any ETA (even a rough one) due to the complexity of the work i
 of time the maintainers are able to spend on this effort. For the time being, updates still target Minecraft 1.20.1.
 
 * Add: Several missing Forge tags for blocks, items, and entities
+* Fix: The boss bar for the gaia ritual no longer starts full and quickly empties at the start of the spawn sequence
 * Internal: Optimized texture file compression
 * Internal: An old to-do list for the lexicon migration to Patchouli is no longer included in the compiled jars (this caused a harmless log error on startup)
 * Language updates: